A picture taken on February 8, 2019 shows the watercolour entitled 'Buschgruppe' (bush group) signed 'A. Hitler', which is on display at the Weidler auction house in the southern city of Nuremberg. - A German auction house scrapped the planned sale of 26 artworks attributed to Adolf Hitler, after doubts emerged about their authenticity just days before they were due to go under the hammer. Five paintings signed 'A. Hitler', all of them watercolours, will be auctioned off on February 9, 2019 as scheduled, according to the Weidler auction house. (Photo by DANIEL KARMANN / AFP) / RESTRICTED TO EDITORIAL USE - TO ILLUSTRATE THE EVENT AS SPECIFIED IN THE CAPTION (Photo credit should read DANIEL KARMANN/AFP/Getty Images)